Attachment for heaters.



Patented Dec. [8, I900. L. D. WEST.

ATTACHMENT FOR HEATERS.

(Application filed Feb. 6, 1900.) (No Model.) 7 Sheets-8haet 1.

mm E S S E N IN W ATTORNEYS 'm: "aims mans no, wanna" wasumcnou. n. c.

No. 663,987. I Patented Dec. 18 I900. L. D. WEST.

ATTACHMENT FO R HEATERS.

(Application filed Feb, 6, 1900.) A (No Modei.) 7 Sheets-aiiaet 2.

ATTORNEYS Patented Dec. l8. I900.

L. 0. WEST.

ATTACHMENT FOR HEATERS.

(Application filed Feb. 6, 1990.

7 Sheets-Sheet 3 (No Model.)

ATTORNEYS Tu: noRms PETERS co. wnmaumou wasmnnmw. a. L.

No. 663,987. Patented Dec. l8, I900.

L. D. WEST. 4 ATTACHMENT FOR HEATERS.

' (Application filed Feb. 6, woo (No Model.) 7 Sheets8heet 4.

WITNESSES: l NTOR ATTORNEYS m: MPFRIS PETERS cov Pno'rouwu. wAsnmaYoN, 0c.

Patented De c. l8, I900.

L. U. WEST ATTACHMENT FOR HEATERS.

(Application filed Feb. 6, 1900.)

7 ShaatsSheet 5.

(No Model.)

ATTORNEYS fur mums Pans co. wonmuwu. WASH Patented Dec. l8, I900. 0.WEST. ATTACHMENT FOR HEATERS.

(No Model.)

(Anplication filed Feb. 6, 1900.)

7 Shaets8heot 6,

INVENTOR amv za I ATTOR N EY$ 4: NORRIS versus om moroumo. w

Patented Dec. I8, 1900; L. D. WEST.

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ATTORNEYS UNITED STATES.

- PATENT FFICE.

LEONIDAS D. WEST, OF DUNDEE, NEW YORK.

ATTAC H M NT FOR HEATERS.

SPECIFICATION forming part of Letters Patent No. 663,987, dated December18, 1960.

Application filed February 6, 1900. Serial No. 4,161. (No model.)

'1?) a whom it may concern:

Be it known that I, LEONIDAS D. WEST, of Dundee, in the county of Yates,in the State I of New York, have invented certain new 5 and usefulImprovements in Attachments for Heaters, of which the following is aspecification.

My invention relates to a new and useful article of manufacture,consisting of an attachment for heaters, and has for its object theproduction of a simple and practical device which may be readilyattached to any form of heater, and particularly to stoves, ranges, andfurnaces, for the purpose of fa- I 5 cilitating combustion within thecombustionchamber and for otherwise rendering the heater more efficientand economical in operation.

To this end the invention consists in the construction and arrangementof the component parts of an attachment for heaters, as hereinafterfully described, and pointed out in the claims.

Figure 1 is a perspective view of my in ven- 2 5 tion shown asoperatively attached to a heater,

as a range, illustrated by dotted lines. Figs.

2 and 3 are respectively enlarged side and front elevations of thedevice seen in Fig. 1,

the damper for controlling the passage of the products of combustionbeing shown in its open position. Fig. 4 is a sectional view taken online 4 4:, Fig. 2. Figs. 5, 6, 7, 8, and 9 are sectional views taken,respectively, on lines 5 5, 6 6, 7 7, 8 8, and 9 9, Fig.3. Fig. 10 isaside elevation similar to Fig. 2, the damper of the smoke-conduit beingshown in a different position from that seen in Fig. 2. Fig.

11 is a sectional view taken on line 11 11, Fig.

10. Figs. 12 and 14 are enlarged elevations of the dampers forcontrolling the inlet of air to the heating-chamber and to thesmoke-conduit and the supporting-walls adjacent thereto. Figs. 13 and 15are sectional views taken,

respectively, on lines 13 13 and 15 15, Figs.

5 12 and 14; and Figs. 16 and 17 are face views,

one being partly in section, of a slightlymodified form of my invention.

This invention consists, essentially, of a sectionAof a smoke-conduit,and a chamber B, interposed between the opposite ends of said sectionand preferably supported thereby, for receiving a supporter ofcombustion,

as air, and conveying the same to the interior of the smoke-conduit ordirectly'to the combustion-chamber of the heater through a separateconduit arranged within the smoke-conduit, as may be desired.

The invention further consists in the means provided on the section Afor controlling the passage of the supporter of combustion, asatmospheric air, to and from the chamber B and in additional means, alsoprovided on the section A, for controlling the draft and the passage ofgases therethrough when the section A is attached to the heater, as arange 0, Fig. 1.

The section A may be of any desired form, size, or material, but usuallyconsists of a sheet-metal cylindrical drum having its opposite endsformed of substantially uniform size in order that the same may bereadily and economically attached as a whole to standard sizes of smokepipes or conduits of stoves, ranges, or other heaters by simplysubstituting the same for one of the lengths of pipe or smoke-conduit ofthe heater. It is thus apparent that when my device is placed inoperative position the section A forms one of the sections of thesmoke-conduit usually in proximity to the heater, so that the movableparts of my invention may be readily and conveniently manipulated.

The chamber B preferably encircles the intermediate portion of thesection A, is provided with an inlet-openingb, outlet-openings b 17 andis surrounded by a drum inclosing a portion b of the section A, saiddrum b and the portion 19 of the section A forming the outer and innerwalls of the chamber B. The opposite ends of the chamber B are closed bysuitable walls which unite the upper and lower ends of drum b to thesection A and form a convenient and efficient support for said drum 17The inlet-opening b, as illustrated, is arranged at the upper end of thechamber B, extends through the wall of the drum b and communicates withan inlet-chamber b having an inlet-opening b communicating with theatmosphere or other supporter of combustion. The opening 17 is closed bya suitable closure E, preferably hinged to the walls of the chamber b",for controlling the entrance of air or other supporter of combustion tothe chamber B. When the draft through the smoke-conduit A is excessivelystrong or the expansive force of the gases within the combustionchamberand smoke-conduitproduces an excessive inequality of pressure therein,thus causing the unburned gases and fuel to escape through thesmoke-conduit,thedamper E may be opened to its full or partialcapacity,whereupon the air enters the chamber B and is discharged therefrom tothe combustionchamber in a heated state for facilitating combustion andconsuming the unburned products before reaching the smoke-conduit A. Ithas been demonstrated, however, that under ordinary conditions of draftand heat within thecombustion-cham her only a small amount of air, ifproperly heated before entering the combustion-chamber, is necessary toperfect an economical combustion and that the force of the expandinggases or draft in the coinbustion-chamber is generally only suflicientto draw in a small amount of air. I there fore provide the inclosure Ewith a plurality of small apertures e and a supplemental inclosure 6 forcontrolling the entrance of air through the apertures 6 when the formerclosure E is in its normal position, thereby aflording a means forsupplying a quantity of heated air or other supporter of combustion tothe combustion-chamber proportionate to the requirements for perfect andcomplete combustion.

The outlet-openings 1) b as illustrated in the drawings, Figs. 7 and 11,are arranged in close proximity to the lower wall of the chamber B, theoutlet-opening I) being extended through the base of the drum Zr forreceiving a conduit, (not shown,) which may be arranged at the outsideof the smoke conduit or section A and lead directly to thecombustion-chamber of the heater. The outlet-opening b usually consistsof a series of perforations extending through the base of the inner wallZ) of the chamber B for conducting the air or other supporter ofcombustion, previously heated in transit through the chamber B, to theinterior of the section A, Whereby said heated air is conducted to thecontiguous lower section, as c, forming a continuation of the section A,and thence to the combustion-cham ber of the heater. It will beunderstood that both of the outlet-openings b b may be simultaneouslyconnected to the combustion-chamber and that either of saidoutlet-openings may be used independently of the other. \Vhen the outerconduit is used alone, the outlet-opening may be closed by a suitableclosure F, having perforations f movable into and out of registrationwith the apertures 6 and when desired to discharge the heated air intothe interior of the section A independently of the external opening I)the perforations fare registered with the aperture b and the opening I)is closed by a suitable cap, as b.

In order that the highest degree of efliciency may be attained from myinvention when the igneous material is well ignited, I provide thesection A with a suitable damper D, preferably arranged above and inproximity to the heating-chamber B and usually mounted on a rock-shaft61, extending through the Walls of the section A. When the combustion iswell under way, the damper D is Wholly or partially closed, therebychecking the escape of the products of combustion and additionallyheating the air in the chamber B before entering the combustion-chamberof the heater. It has been further demon strated that the degree ofpressure in the combustion-chamber fluctuates with the variations of thedraft through the smoke-conduit and that it is necessary, as previouslystated, to have the supply of heated air proportionate to the pressurein order to produce perfect combustion. I therefore provide the sectionA with an opening a", preferably arranged above and in proximity to thedamper D and connecting with a chamber g, having an inlet-opening gcommunicating with the atmosphere. G is a damper for controlling thepassage of air through theinlet-openings 9' a is hinged to the walls ofsaid chamber g, and consists of upper and lower sections 9 and 9 theupper section g being hinged to the walls of the chamber g and the lowersection 9 being hinged to the outer face of the upper section above itsbottom edge in order that when the section 9 is in its normal inclosedposition the section is held from movement and positively closes theopening 9. \Vhen the draft through the smoke-conduit A is excessive orfluctuating, the upper section g is rocked inwardly, whereupon thelowersection g is free to swing in the chamber g forautomaticallycontrolling the volume of air admitted through the openings 9 and aaccording to the intensity of the draft, and thereby maintaining asubstantially uniform pressurein the combustion chamber and consequentuniform amount of heated air passing through the chamber 13.

The dampers D G and the closure E may be operated in any desired mannerand are preferably connected to a suitable operating member D byconnections, as chains (1 g 6 The operating member Dis pivoted at itsintermediate portion to the walls of the lower portion of the section Abeneath the chamber B, is mounted on a shaft extending through the wallsof the section A and a sleeve a interposed between said walls, and isprovided with a shoulder d frictionally engaged with a shoulder a on thesection A, arms 01 and d, connected, respectively, to the lower ends ofthe chains (1 and a sliding connection (1 connected to the lower end ofthe chain (1 and movable on a suitable guide d ,,extending lengthwise ofthe arms d The shoulders (I a are held in frictional engagement by aspring (1 for preventing undue movement of the operating member D. The

seats? upper ends of the chains 01 g e are connected, respectively, toarms d g e for controlling the position of the dampers D and G and theclosure E, which are held in their normal positions by suitable weightsd, g, and e. The above-described operating means for the dampers D and Gand the closure E are not essential to the successful operation of mydevice, and it is therefore unnecessary to f urther illustrate ordescribe the same.

In Figs. 16 and 17 I have shown two heating-chambers B and B connectedto each other, the chamber B being provided with a tortuous conduit 11having an extension 19 adapted to discharge into the combustionchamber.(Not shown.)

The operation of my invention is substantially the same as set forth inmy pending application for process, Serial No. 13,424, except in thepresent instanceI have shown my device as attached to a range 0,consisting of an inclosing shell 0, provided with inletopenings 0leading to the combustion-chamber and with a closure 0 for controllingthe entrance of air through said openings. When my device is used inconnection with a range, as illustrated in Fig. l, the operation is asfollows: When the igneous material is first ignited, the closure 0 andthe damperD are opened and the closure E and damper G are closed forpermitting the smoke and gases to escape freely through the section Awithout liability of the escape of any gases or smoke into the room inwhich my device is located, the supply of air to the combustion-chamberbeing admitted directly through the openings 0 When the combustion iswell under way, the inlet-openings O are closed, the expanding heatedproducts of combustion rise through the smoke conduits A c, and producean inequality of pressure in the combustion chamber and air-chamber,whereupon air is admitted through the restricted apertures e orinlet-opening b to the chamber B, which air is heated in saidair-chamber and is drawn through the outlet-openings b or 11 as may bedesired, to the combustion-chamber of the heater by the inequality ofpressure in said combustion-chamber,which forms a connection between theair-chamber and smoke-condit.

The operation of my invention will now be readily understood uponreference to the foregoing description and the accompanying drawings,and it will be noted that considerable change may be made in the detail,construction, and arrangement of the parts-of my invention withoutdeparting from the spirit thereof. Therefore I do not herein limitmyself to the precise construction and arrangement shown and described.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is-

1. As a new article of manufacture, an attach ment for heaters for thepurpose described, the same comprising a section of a smoke-conduitprovided with an opening, a closure for the opening, a drum encirclingthe intermediate portion of the smoke-conduit beneath said opening forforming an airchamber surrounding the smoke-conduit,said chamber beingprovided with an inlet-opening communicating with the atmosphere and anoutlet-opening communicating with the interior of the conduit, a closurefor the inlet-opening and a damper arranged within the smoke-conduitbetween said openings.

2. As a new article of manufacture, an attachment for heaters for thepurpose described, the same consisting of a section of a smoke-conduitprovided with an opening, a closure for the opening, means forautomatically closing said closure, a drum encircling the intermediateportion of the conduit for forming an air-chamber surrounding theconduit,said air-chamber being provided with an inlet-opening communicating with the atmosphere and an outlet-opening communicating withthe interior of the conduit, a closure for the inlet-opening, means forautomatically closing said closure, and a damper arranged within thesmoke-cond uit between said openings.

3. As a new article of manufacture, an attachment for heaters for thepurpose described, the same consisting of a section of a smoke-conduitprovided with an opening, a closure for the opening, means forautomatically closing said closure, a drum encircling the intermediateportion of the smoke-conduit for forming an air-chamber surrounding theconduit, said air-chamber being provided with an inlet-opening communicating with the atmosphere and an outlet-opening communicating withthe interior of the conduit, a closure for the inlet-opening, a damperarranged within the conduit between said openings, means forautomatically closing the damper, and an operating member havingopposite arms connected respectively to the closure of the first openingand to the damper and provided with an adjustable slide connected to theclosure for the inlet-opening.

In testimony whereof I have hereunto signed my name, in the presence oftwo attesting witnesses, at Syracuse, in the county of Onondaga, and inthe State of New York, this 27th day of January, 1900.

LEONIDAS D. WEST.

Witnesses:

D. LAVINE, S. DAVIS.

